Liveliness

Use these QoS fields to manage the liveliness of participants and endpoints, ensuring active communication and timely updates of the system state.

Use these QoS fields to manage the liveliness of participants and endpoints, ensuring active communication and timely updates of the system state.

Basic Settings

com.rti.dds.infrastructure.LivelinessQosPolicy	kind
	<<basic>> <<spec>> The kind of liveliness desired.
com.rti.dds.infrastructure.LivelinessQosPolicy	lease_duration
	<<basic>> <<spec>> The duration within which a com.rti.dds.publication.DataWriter must be asserted, or else it is assumed to be not alive.
com.rti.dds.infrastructure.LivelinessQosPolicy	assertions_per_lease_duration
	<<basic>> <<extension>> The number of assertions a com.rti.dds.publication.DataWriter will send during a its com.rti.dds.infrastructure.LivelinessQosPolicy.lease_duration.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	participant_liveliness_lease_duration
	<<basic>> <<extension>> The liveliness lease duration for the participant.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	participant_liveliness_assert_period
	<<basic>> <<extension>> The period to assert liveliness for the participant.

Advanced Settings

com.rti.dds.infrastructure.DataReaderResourceLimitsQosPolicy	autopurge_remote_not_alive_writer_delay
	<<extension>> Maximum duration for which the com.rti.dds.subscription.DataReader will maintain information regarding a com.rti.dds.publication.DataWriter once the com.rti.dds.publication.DataWriter has become not alive.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	remote_participant_purge_kind
	[DEPRECATED] <<extension>> The participant's behavior for maintaining knowledge of remote participants (and their contained entities) with which discovery communication has been lost.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	max_liveliness_loss_detection_period
	[DEPRECATED] <<extension>> The maximum amount of time between when a remote entity stops maintaining its liveliness and when the matched local entity realizes that fact.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	participant_message_writer
	<<extension>> RTPS protocol-related configuration settings for the RTPS reliable writer associated with the built-in participant message writer. This parameter only has effect if the matching participant message reader is configured with com.rti.dds.infrastructure.ReliabilityQosPolicyKind.RELIABLE_RELIABILITY_QOS com.rti.dds.infrastructure.ReliabilityQosPolicyKind.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	participant_message_reader_reliability_kind
	[DEPRECATED] <<extension>> Reliability policy for a built-in participant message reader.
com.rti.dds.infrastructure.DiscoveryConfigQosPolicy	participant_message_reader
	<<extension>> RTPS reliable reader protocol-related configuration settings for a built-in participant message reader. This parameter only has effect if com.rti.dds.infrastructure.DiscoveryConfigQosPolicy.participant_message_reader_reliability_kind is set to com.rti.dds.infrastructure.ReliabilityQosPolicyKind.RELIABLE_RELIABILITY_QOS.
com.rti.dds.infrastructure.RtpsReliableWriterProtocol_t	max_heartbeat_retries
	<<extension>> The maximum number of periodic heartbeat retries before marking a remote reader as inactive.
com.rti.dds.infrastructure.RtpsReliableWriterProtocol_t	inactivate_nonprogressing_readers
	<<extension>> Whether to treat remote readers as inactive when their NACKs do not progress